Hi there,
I’m having similar problems with the pairing of multiple devices with Soundcore 2.
I pair and connect the first device, disconnect and then turn on and pair the second device. When I turn off (or disconnect via settings) the second device, the first one cannot connect automatically, nor by holding the Bluetooth key on the speaker, nor by clicking the connect button in the settings of the device. The only way to reconnect the first device is to do “forget this device”, turn off/turn on the Bluetooth in device setting and pair the device from scratch.
I’ve tried the steps that @Doug01 mentions and that didn’t work too, I’m not sure how he managed to that at all because this - and also from all other posts - is some fundamental flaw of this product especially considering its nature. Being able to relatively easy switch between devices is essential for a movable speaker, which can be used by more than one device and one person (and one who also have a couple of devices).
From what I see on this thread nobody has given a solution for this matter, nor has Anker support have come clear about their product which btw is a best seller, and also for all the other points - battery life, quality of materials, good sound for the price range - a very good quality product.
If somebody has a viable solution you are more than welcome…